Chemistry of Heterocyclic Compounds p. 417 - 423 (1988)
Update date:2022-08-03
Topics:
Bisenieks, E. A.
Makarova, N. V.
Uldrikis, Ya. R.
Dubur, G. Ya.
A series of 9-aroyl-3,3,6,6-tetramethyl-1,2,3,4,5,6,7,8-octahydroxanthen-1,8-diones has been prepared from arylglyoxals and dimedone in a dehydrating medium; upon heating with ammonia these compounds are converted to 1-aryl-4,4,8,8-tetramethyl-2,3,4,5,7,8,9,10-octahydropyrrolo<4,3,2-m,n>acridin-10-ones.These reactions occur via the intermediate formation of tetrahydroindole derivatives.
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